First Revision No. 28-NFPA 418-2014 [ Global Input ] · 2015-12-23 · First Revision No. 24-NFPA 418-2014 [ New Section after 1.3.2 ] 1.4 Retroactivity. The provisions of this standard

First Revision No. 28-NFPA 418-2014 [ Global Input ]

Add new 2.3.1 as follows:

2.3.1 ASTM Publications.

ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.

ASTM E108, Standard Test Methods for Fire Tests of Roof Coverings, 2011.

ASTM E136, Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750Degrees C, 2012.

ASTM E2652, Standard Test Method for Behavior of Materials in a Tube Furnace with a Cone-shapedAirflow Stabilizer, at 750 Degrees C, 2012.

Submitter Information Verification

Submitter Full Name: Michael Beady

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Submittal Date: Mon Jun 02 14:33:13 EDT 2014

Committee Statement

Committee Statement: Added references per new text in FR 19

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National Fire Protection Association Report http://submittals.nfpa.org/TerraViewWeb/ContentFetcher?commentPara...

1 of 25 6/16/2014 12:29 PM

First Revision No. 30-NFPA 418-2014 [ Global Input ]

Add new section as follows:

2.3.X FM Publications.

FM Global, 1301 Atwood Avenue, P.O. Box 7500, Johnston, RI 02919, www.fmglobal.com

FM 4470, Approval for Class 1 Roof Covers, 2012.




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Committee Statement

Committee Statement: Adding new reference per text in FR 13

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2 of 25 6/16/2014 12:29 PM

First Revision No. 24-NFPA 418-2014 [ New Section after 1.3.2 ]

1.4 Retroactivity.

The provisions of this standard reflect a consensus of what is necessary to provide an acceptabledegree of protection from the hazards addressed in this standard at the time the standard was issued.

1.4.1

Unless otherwise specified, the provisions of this standard shall not apply to facilities, equipment,structures, or installations that existed or were approved for construction or installation prior to theeffective date of the standard. Where specified, the provisions of this standard shall be retroactive.

1.4.2

In those cases where the authority having jurisdiction determines that the existing situation presents anunacceptable degree of risk, the authority having jurisdiction shall be permitted to apply retroactively anyportions of this standard deemed appropriate.

1.4.3

The retroactive requirements of this standard shall be permitted to be modified if their application clearlywould be impractical in the judgment of the authority having jurisdiction, and only where it is clearlyevident that a reasonable degree of safety is provided.


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Submittal Date: Wed May 14 16:40:55 EDT 2014

Committee Statement

CommitteeStatement:

A retroactivity clause has been added to prevent hardship of existing heliports being requiredto comply with new requirements.

ResponseMessage:


3 of 25 6/16/2014 12:29 PM

First Revision No. 1-NFPA 418-2014 [ Section No. 2.2 ]

2.2 NFPA Publications.

National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471.

NFPA 10, Standard for Portable Fire Extinguishers, 2010 2013 edition.

NFPA 11, Standard for Low-, Medium-, and High-Expansion Foam, 2015 edition.

NFPA 13, Standard for the Installation of Sprinkler Systems, 2010 2016 edition.

NFPA 14, Standard for the Installation of Standpipe and Hose Systems, 2010 2016 edition.

NFPA 16, Standard for the Installation of Foam-Water Sprinkler and Foam-Water Spray Systems, 2015edition.

NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection, 2010 2016 edition.

NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems,2011 2014 edition.

NFPA 30, Flammable and Combustible Liquids Code, 2008 2015 edition.

NFPA 70®, National Electrical Code®, 2011 2014 edition.

NFPA 72®, National Fire Alarm and Signaling Code, 2010 2016 edition.

NFPA 99, Standard for Health Care Facilities Health Care Facilities Code , 2005 2015 edition.

NFPA 101®, Life Safety Code®, 2009 2015 edition.

NFPA 220, Standard on Types of Building Construction, 2009 2015 edition.

NFPA 407, Standard for Aircraft Fuel Servicing, 2007 2012 edition.

NFPA 409, Standard on Aircraft Hangars, 2011 2016 edition.

NFPA 780, Standard for the Installation of Lightning Protection Systems, 2011 2014 edition.




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Submittal Date: Mon May 12 17:11:30 EDT 2014

Committee Statement

Committee Statement: Update references.

Response Message:


4 of 25 6/16/2014 12:29 PM

First Revision No. 2-NFPA 418-2014 [ Section No. 2.3.1 ]

2.3.2 FAA Publications.

Federal Aviation Administration, Department of Transportation, Distribution Unit, M-494.3, Washington,DC 20590.

FAA AC 150/5390-2B 2C , Heliport Design Advisory Circular, September 30 April 24 , 2004 2012 .




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Committee Statement

Committee Statement: Update reference.

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5 of 25 6/16/2014 12:29 PM


2.3.4 UL Publications.

Underwriters Laboratories Inc., 333 Pfingsten Road, Northbrook, IL 60062-2096.

UL 162, Standard for Foam Equipment and Liquid Concentrates, 1994 with revisions through September1999.

ANSI/UL 790, Standard Test Methods for Fire Tests of Roof Covering , 2004.




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Committee Statement

Committee Statement: Adding new reference per text in FR 13

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6 of 25 6/16/2014 12:29 PM


2.4 References for Extracts in Mandatory Sections. (Reserved)

NFPA 101 ® , Life Safety Code ® , 2015 edition.




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Submittal Date: Fri May 16 17:51:15 EDT 2014

Committee Statement

Committee Statement: New extracts added.

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7 of 25 6/16/2014 12:29 PM


4.2.2

The design of the heliport, including all the aeronautical components, shall be in accordance with FAA AC150/5390-2B 2C , Heliport Design Advisory Circular.




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8 of 25 6/16/2014 12:29 PM


4.3.2

Oxygen and other medical gases shall be stored and used in accordance with Section 9.4 of NFPA 99. ,Standard for Health Care Facilities .




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Committee Statement

Committee Statement: Updated reference title. Removed incorrect reference to specific section.

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9 of 25 6/16/2014 12:29 PM


4.3.3

Aboveground flammable liquid storage tanks, compressed gas storage tanks, fuel storage tanks, andliquefied gas storage tanks shall be laterally located at least 50 ft (15.2 m) from the edge of the FATO areaas defined in FAA AC 150/5390-2B 2C , Heliport Design Advisory Circular.




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10 of 25 6/16/2014 12:29 PM


4.7.2

Fueling equipment shall be located a minimum of 25 ft (7.6 m) from hangars and fixed fire protectionequipment.




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Committee Statement

CommitteeStatement:

The requirement is intended to specify a minimum distance. Equipment located distances greaterthan 25 feet from hangars and fixed fire protection equipment should also be considered asmeeting the requirement.

ResponseMessage:

Public Input No. 9-NFPA 418-2013 [Section No. 4.7.2]


11 of 25 6/16/2014 12:29 PM


4.7.3

Fuel servicing equipment shall be designed to not penetrate the FATO and safety area obstructionclearance requirements in FAA AC 150/5390-2B 2C , Heliport Design Advisory Circular.




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12 of 25 6/16/2014 12:29 PM

First Revision No. 19-NFPA 418-2014 [ New Section after 5.4.1 ]

5.4.1.1*

A material that complies with any of the following shall be considered a noncombustible material:

(1)

(2) A material that is reported as passing ASTM E136, Standard Test Method for Behavior ofMaterials in a Vertical Tube Furnace at 750 Degrees C

(3) A material that is reported as complying with the pass/fail criteria of ASTM E136 when tested inaccordance with the test method and procedure in ASTM E2652, Standard Test Method forBehavior of Materials in a Tube Furnace with a Cone-shaped Airflow Stabilizer, at 750 Degrees C

[ 101, 2015]

Supplemental Information

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418_FR19_Annex_edited.docx




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Committee Statement

CommitteeStatement:

The extracted text provides a definition of "noncombustible" material, which can be applied torooftop landing pad materials and coatings.

ResponseMessage:

* A material that, in the form in which it is used and under the conditions anticipated, will notignite, burn, support combustion, or release flammable vapors when subjected to fire or heat


13 of 25 6/16/2014 12:29 PM

A.5.4.1.1 The provisions of 5.4.1.1 do not require inherently noncombustible materials to be tested in order to be classified as noncombustible materials. [101, 2012] A.5.4.1.1(1) Examples of such materials include steel, concrete, masonry, and glass. [101, 2012]


5.4.2

The contiguous building roof covering within 50 ft (15.2 m) of the landing pad edge shall have a Class Afire resistance rating for exterior fire exposure, and shall be tested according to FM 4470, Approval forClass 1 Roof Covers; ANSI/UL 790, Standard Test Methods for Fire Tests of Roof Covering ; or ASTME108, Standard Test Methods for Fire Tests of Roof Coverings .




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CommitteeStatement:

Section 5.4.2 contains a requirement that is vague and not specific. The revised wordingcomes from NFPA 5000 38.2.1.1.

ResponseMessage:



14 of 25 6/16/2014 12:29 PM

First Revision No. 25-NFPA 418-2014 [ Sections 5.7, 5.8, 5.9, 5.10 ]

5.7 Fire Protection.

A foam fire-extinguishing system with either a fixed discharge outlet(s) in accordance with 5.7.3 or ahose line(s) in accordance with 5.7.4 shall be designed and installed to protect the rooftop landingpad, unless otherwise permitted by the following:

A foam fire-extinguishing system shall not be required for heliports located on open parkingstructures or buildings that are not normally occupied.

For H-1 heliports, two portable foam extinguishers, each having a rating of 20-A:160-B, shall bepermitted to be used to satisfy the requirement of Section 5.7 .

5.7.1 General.

A foam fire-extinguishing system with either a fixed discharge outlet(s) in accordance with5.7.2 5.7.25.7.3 or a hose line(s) in accordance with 5.7.3 5.7.35.7.4 shall be designed and installed toprotect the rooftop landing pad, unless otherwise permitted by the following:

(1) A foam fire-extinguishing system shall not be required for heliports located on open parkingstructures or buildings that are not normally occupied.

(2) For H-1 heliports, two portable foam extinguishers, each having a rating of 20-A:160-B, shall bepermitted to be used to satisfy the requirement of Section 5.7.1 5.7.15.7 .

5.7.1.1

Where trained personnel are not available, fixed fire protection outlet(s) shall be provided.

5.7.1.2*

The foam discharge rate for the fire-extinguishing system shall be 0.10 gpm/ft2 (4.1 L/min·m2) foraqueous film forming foam (AFFF).

5.7.1.3

Where freezing is possible, freeze protection shall be provided.

5.7.1.4

The foam components shall be installed in an area of the heliport and shall not penetrate the approachtakeoff surface, transitional surfaces, and safety area as defined in FAA AC 150/5390-2B 150/5390-2C ,Heliport Design Advisory Circular.

5.7.2


5.7.3

The foam components shall be installed in an area of the heliport and shall not penetrate the approachtakeoff surface, transitional surfaces, and safety area as defined in FAA AC 150/5390-2B , HeliportDesign Advisory Circular .

5.7.2

Where trained personnel are not available, fixed fire protection outlet(s) shall be provided.

5.7.3*

The foam discharge rate for the fire-extinguishing system shall be 0.10 gpm/ft 2 (4.1 L/min·m 2 ) foraqueous film forming foam (AFFF).

5.7.2 Fixed Foam Fire-Extinguishing Systems.

5.7.2.1

Fixed foam fire-extinguishing systems shall be designed and installed in accordance with NFPA 11 ,NFPA 16 , or an equivalent standard, as appropriate, except as modified by this chapter.

5.7.2.2*

The area of application of foam discharge for fixed discharge outlet systems shall be the entire rooftoplanding pad.

5.7.2.3


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The duration of foam discharge for the fixed discharge outlet system shall be 5 10 minutes.

5.7.3.2.1

The supply calculation method shall be performed in accordance with Chapter 6 of NFPA 409 ,Standard on Aircraft Hangars .

5.7.2.4

A fixed nozzle discharge outlet system shall be one of the following: fixed stationary nozzles around theperimeter, two or more oscillating monitors/nozzles, or in-deck nozzles within the perimeter of the deck.

5.7.2.5

Where fixed foam systems utilizing fixed deck nozzles or oscillating foam turrets, or both, are installed,system components shall be listed or approved.

5.7.2.6 Activation of Systems.

5.7.2.6.1*

The fixed discharge outlet system shall be activated manually.

5.7.2.6.2*

The activation shall be by manual pull stations located at each egress point from the rooftop landing pad.An additional manual pull station Manual actuation stations shall be located at each egress point from therooftop landing pad and at an approved location inside the building from which the rooftop landing padcan be viewed.

5.7.2.6.3

Manual foam activation stations shall be clearly labeled or identified as to the purpose and hazardprotected.

5.7.2.6.4

Where buildings are provided with a fire alarm system, the activation of the foam system shall bemonitored by the building fire alarm system in accordance with NFPA 72. , National Fire Alarm andSignaling Code .

5.7.2.6.5

An approved manual control for foam system shutdown shall be accessible at all times, including thetime of fire and system operation.

5.7.3 Manual Fire-Fighting Equipment.

5.7.3.1*

The area of application of foam discharge for hose line systems shall be the practical critical fire area forthe category of the helicopter landing facility in accordance with Table 5.7.3.1 Table 5.7.3.1Table 5.7.4.1 .

Table 5.7.3.1 Practical Critical Fire Areas for Hose Line Systems Only

Heliport

Category

Helicopter

Overall Length*

Practical Critical

Fire Area

ft2 m2

H-1 Less than 50 ft (15.2 m) 375 34.8

H-2 50 ft (15.2 m) up to but not including 80 ft (24.4 m) 840 78.0

H-3 80 ft (24.4 m) up to but not including 120 ft (36.6 m) 1440 133.8

*Helicopter length, including the tail boom and the rotors.

5.7.3.2

The duration of foam discharge for the hose line systems shall be 2 minutes.

5.7.4.3

The supply calculation method shall be performed in accordance with Chapter 6 of NFPA 409 ,Standard on Aircraft Hangars .

5.7.3.3

A fixed nozzle discharge outlet system shall be one of the following: fixed stationary nozzles around theperimeter, two or more oscillating monitors/nozzles, or in-deck nozzles within the perimeter of the deck.

5.7.4 Supplementary Protection.

Standpipes and hose stations, if used, shall be installed in accordance with NFPA 14.

5.7.5 Water Supply.

The water supply for the foam system shall be from a source approved by the AHJ.


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5.7.5.1

The water supply for the foam system shall be from a source approved by the AHJ.

5.7.5.2

Fire pumps, if used, shall be installed in accordance with NFPA 20. , Standard for the Installation ofStationary Pumps for Fire Protection .

5.7.4.2

Standpipes and hose stations, if used, shall be installed in accordance with NFPA 14 , Standard for theInstallation of Standpipe and Hose Systems .

5.7.6.3


5.7.7

The foam components shall be installed in an area of the heliport and shall not penetrate the approachtakeoff surface, transitional surfaces, and safety area as defined in FAA AC 150/5390-2B , HeliportDesign Advisory Circular .

5.7.6 Foam Concentrate Supply.

At facilities where there is more than one rooftop landing pad, the supply of foam available shall besufficient to cover an incident on at least one of the pads.

5.7.6.1

At facilities where there is more than one rooftop landing pad, the The supply of foamavailable concentrate shall be sufficient to cover an incident on at least one of the pads supply the largestsystem .

5.7.6.2

The foam concentrate for the fixed system or manual fire-fighting equipment shall be listed in accordancewith UL 162, Standard for Foam Equipment and Liquid Concentrates, and shall be on the qualifiedproducts list for MIL-F-24385, or equivalent.

5.7.7 Fire Alarm.

A means of communication shall be provided from the roof area to notify the fire department ofemergencies.

5.7.7.1


5.7.7.2

Where buildings are provided with a fire alarm system, a manual pull station shall be provided for eachdesignated means of egress from the roof. (See 5.5.1.)

5.7.8 Acceptance Testing.

5.7.8.1 Acceptance Testing. Fixed Foam Fire-Extinguishing Systems.

The fixed foam discharge outlet system shall be tested with foam to determine the coverage of therooftop landing pad.

5.7.8.1.1


5.7.8.1.1

The system shall cover 95 percent of the rooftop landing pad during the test.

5.7.8.1.2

The access points for firefighting and for egress shall be covered.

5.7.8.2 Manual Fire-Fighting Equipment.

The hose hand-lines shall be flow tested to demonstrate that the design objectives are met.

5.7.9 Inspection, Testing, and Maintenance.

Fire protection systems installed in accordance with NFPA 14 or NFPA 16 shall be inspected, tested,and maintained in accordance with NFPA 25 .

5.7.9.1

Fire protection systems installed in accordance with NFPA 14 or NFPA 16 shall be inspected, tested,and maintained in accordance with NFPA 25 .

5.7.9.2

Foam systems installed in accordance with NFPA 11 shall be maintained in accordance with NFPA 11 .


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5.7.6

Where fixed foam systems utilizing fixed deck nozzles or oscillating foam turrets, or both, are installed,system components shall be listed or approved.

5.7.7

The foam concentrate for the fixed system or manual fire-fighting equipment shall be listed inaccordance with UL 162, Standard for Foam Equipment and Liquid Concentrates , and shall be on thequalified products list for MIL-F-24385, or equivalent.

5.7.2.6 Activation of Systems.

5.7.2.6.1*

The fixed discharge outlet system shall be activated manually.

5.7.2.6.2*

The activation shall be by manual pull stations located at each egress point from the rooftop landing pad.An additional manual pull station Manual actuation stations shall be located at each egress point from therooftop landing pad and at an approved location inside the building from which the rooftop landing padcan be viewed.

5.7.2.6.3

Manual foam activation stations shall be clearly labeled or identified as to the purpose and hazardprotected.

5.7.2.6.4

Where buildings are provided with a fire alarm system, the activation of the foam system shall bemonitored by the building fire alarm system in accordance with NFPA 72. , National Fire Alarm andSignaling Code .

5.7.2.6.5

An approved manual control for foam system shutdown shall be accessible at all times, including thetime of fire and system operation.

5.7.7 Fire Alarm.


5.7.7.1


5.7.7.2

Where buildings are provided with a fire alarm system, a manual pull station shall be provided for eachdesignated means of egress from the roof. (See 5.5.1.)

5.7.8 Acceptance Testing.

5.7.8.1 Acceptance Testing. Fixed Foam Fire-Extinguishing Systems.


5.7.8.1.1


5.7.8.1.1

The system shall cover 95 percent of the rooftop landing pad during the test.

5.7.8.1.2

The access points for firefighting and for egress shall be covered.

5.7.8.2 Manual Fire-Fighting Equipment.

The hose hand-lines shall be flow tested to demonstrate that the design objectives are met.

Supplemental Information

File Name Description

418_FR25_Reorganized_5.7_edited.docx



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Committee Statement

CommitteeStatement:

Sections 5.7, 5.8, 5.9, and 5.10 were reorganized and combined into a single 5.7 to provide clarity.

5.7.1.4 (previous 5.7.6): Update reference.

5.7.2.1 (new): The standard should identify an appropriate installation standard for fixed foamsystems.

5.7.2.3 (previous 5.7.3.2): The foam discharge duration was revised to be consistent with NFPA 16and NFPA 409. There are operational and first-responder issues that would benefit from theincreased duration. Rooftop heliports are not easily accessible to first-responders within afive-minute time frame.

previous 5.7.3.2.1 (deleted): Chapter 6 of NFPA 409 no longer provides guidance on the supplycalculation method.

5.7.2.6.2 (previous 5.8.2): Combined into a single sentence to meet the Manual of Style.

5.7.2.6.3 (new): It is important that personnel on the rooftop are able to locate and identify thecorrect activation station during an emergency.

5.7.2.6.4 (new): The new text provides additional guidance on the location of the foam systemshutoff.

previous 5.7.4.3 (deleted): Chapter 6 of NFPA 409 no longer provides guidance on the supplycalculation method.

5.7.6.1 (previous 5.7.7: The intent is to provide sufficient foam concentrate for the largest system,based on the supply calculation method. Multiple pads may be covered by a single system orindividual systems. The previous terminology, which tied the requirement to "pads", did notaccomplish this intent.

5.7.9 (new): Foam systems installed in accordance with NFPA 11 are not covered by NFPA 25.

ResponseMessage:



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SL Note: Substantiations are provided in red text for ease of reference. These should not be included in the First Draft.

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5.7 Fire Protection. 5.7.1 General. A foam fire-extinguishing system with either a fixed discharge outlet(s) in accordance with 5.7.3 5.7.2 or a hose line(s) in accordance with 5.7.4 5.7.3 shall be designed and installed to protect the rooftop landing pad, unless otherwise permitted by the following:

(1) A foam fire-extinguishing system shall not be required for heliports located on open parking structures or buildings that are not normally occupied.

(2) For H-1 heliports, two portable foam extinguishers, each having a rating of 20-A:160-B, shall be permitted to be used to satisfy the requirement of Section 5.7 5.7.1.

5.7.1 5.7.1.1 Where trained personnel are not available, fixed fire protection outlet(s) shall be provided. 5.7.2 5.7.1.2* The foam discharge rate for the fire-extinguishing system shall be 0.10 gpm/ft2 (4.1 L/min·m2) for aqueous film forming foam (AFFF).

A.5.7.2 A.5.7.1.2 Currently, the qualified products listed for MIL-F-24385 do not contain any fluoroprotein or protein foam products.

5.7.5.3 5.7.1.3 Where freezing is possible, freeze protection shall be provided. 5.7.6 5.7.1.4 The foam components shall be installed in an area of the heliport and shall not penetrate the approach takeoff surface, transitional surfaces, and safety area as defined in FAAAC 150/5390-2B 150/5390-2C, Heliport Design Advisory Circular.

SUBSTANTIATION for 5.7.1.4: Update reference. 5.7.3 5.7.2 Fixed Foam Fire-Extinguishing Systems. 5.7.2.1 Fixed foam fire-extinguishing systems shall be designed and installed in accordance with NFPA 11, NFPA 16, or an equivalent standard, as appropriate, except as modified by this chapter.

SUBSTANTIATION for 5.7.2.1: The standard should identify an appropriate installation standard for fixed foam systems.

5.7.3.1 5.7.2.2* The area of application of foam discharge for fixed discharge outlet systems shall be the entire rooftop landing pad.

A.5.7.3.1 A.5.7.2.2 Consideration should be given to the environmental conditions of the rooftop landing pad in the design of the system, including wind, exhaust fans, and other factors that affect the distribution of the foam on the rooftop landing pad.

5.7.3.2 5.7.2.3 The duration of foam discharge for the fixed discharge outlet system shall be 5 10 minutes.

SUBSTANTIATION for 5.7.2.3: The foam discharge duration was revised to be consistent with NFPA 16 and NFPA 409. There are operational and first-responder issues that would benefit from the increased duration. Rooftop heliports are not easily accessible to first-responders within a five-minute time frame.

5.7.3.2.1 The supply calculation method shall be performed in accordance with Chapter 6 of NFPA 409, Standard on Aircraft Hangars.

SUBSTANTIATION for old 5.7.3.2.1: Chapter 6 of NFPA 409 no longer provides guidance on the supply calculation method.

5.7.4.4 5.7.2.4 A fixed nozzle discharge outlet system shall be one of the following: fixed stationary nozzles around the perimeter, two or more oscillating monitors/nozzles, or in-deck nozzles within the perimeter of the deck. 5.7.8 5.7.2.5 Where fixed foam systems utilizing fixed deck nozzles or oscillating foam turrets, or both, are installed, system components shall be listed or approved. 5.8 5.7.2.6 Activation of Systems. 5.8.1 5.7.2.6.1* The fixed discharge outlet system shall be activated manually.

A.5.8.1 A.5.7.2.6.1 Training on the operation of the fire protection system should be in accordance with Annex B.

5.8.2 5.7.2.6.2* The activation shall be by manual pull stations located at each egress point from the rooftop landing pad. An additional manual pull station Manual actuation stations shall be located at each egress point from the rooftop landing pad and at an approved location inside the building from which the rooftop landing pad can be viewed.

SUBSTANTIATION for 5.7.2.6.2: Combined into a single sentence to meet the Manual of Style.

A.5.8.2 A.5.7.2.6.2 It is acceptable for the rooftop landing pad to be viewed using video or other acceptable means.

5.7.2.6.3 Manual foam activation stations shall be clearly labeled or identified as to the purpose and hazard protected.

SUBSTANTIATION for 5.7.2.6.3: It is important that personnel on the rooftop are able to locate and identify the correct activation station during an emergency.

5.8.3 5.7.2.6.3 Where buildings are provided with a fire alarm system, the activation of the foam system shall be monitored by the building fire alarm system in accordance with NFPA 72, National Fire Alarm and Signaling Code. 5.7.2.6.4 An approved manual control for foam system shutdown shall be accessible at all times, including the time of fire and system operation.

SUBSTANTIATION for 5.7.2.6.4: The new text provides additional guidance on the location of the foam system shutoff.

5.7.4 5.7.3 Manual Fire-Fighting Equipment. 5.7.4.1 5.7.3.1* The area of application of foam discharge for hose line systems shall be the practical critical fire area for the category of the helicopter landing facility in accordance with Table 5.7.4.1 5.7.3.1. Table 5.7.4.1 5.7.3.1 Practical Critical Fire Areas for Hose Line Systems Only

Heliport Category Helicopter Overall Length*

Practical Critical Fire Area

ft2 m2

H-1 Less than 50 ft (15.2 m) 375 34.8

H-2 50 ft (15.2 m) up to but not including 80 ft (24.4 m)

840 78.0

H-3 80 ft (24.4 m) up to but not including 120 ft (36.6 m)

1440 133.8

*Helicopter length, including the tail boom and the rotors.

A.5.7.4.1 A.5.7.3.1 The area of application and the duration where using a hose line system is reduced because foam is applied efficiently and directly on the fire by trained personnel.

5.7.4.2 5.7.3.2 The duration of foam discharge for the hose line systems shall be 2 minutes. 5.7.4.3 The supply calculation method shall be performed in accordance with Chapter 6 of NFPA 409, Standard on Aircraft Hangars.

SUBSTANTIATION for old 5.7.4.3: Chapter 6 of NFPA 409 no longer provides guidance on the supply calculation method.

5.7.5.2 5.7.4 Supplementary Protection. Standpipes and hose stations, if used, shall be installed in accordance with NFPA 14, Standard for the Installation of Standpipe and Hose Systems. 5.7.5 Water Supply. 5.7.5.1 The water supply for the foam system shall be from a source approved by the AHJ. 5.7.5.1 5.7.5.2 Fire pumps, if used, shall be installed in accordance with NFPA 20, Standard for the Installation of Stationary Pumps for Fire Protection. 5.7.6 Foam Concentrate Supply.

5.7.7 5.7.6.1 At facilities where there is more than one rooftop landing pad, the The supply of foam available concentrate shall be sufficient to cover an incident on at least one of the pads supply the largest system.

SUBSTANTIATION for 5.7.6.1: The intent is to provide sufficient foam concentrate for the largest system, based on the supply calculation method. Multiple pads may be covered by a single system or individual systems. The previous terminology, which tied the requirement to "pads", did not accomplish this intent.

5.7.9 5.7.6.2 The foam concentrate for the fixed system or manual firefighting equipment shall be listed in accordance with UL 162, Standard for Foam Equipment and Liquid Concentrates, and shall be on the qualified products list for MIL-F-24385, or equivalent. 5.9 5.7.7 Fire Alarm. 5.7.7.1 A means of communication shall be provided from the roof area to notify the fire department of emergencies. 5.9.1 5.7.7.2 Where buildings are provided with a fire alarm system, a manual pull station shall be provided for each designated means of egress from the roof. (See 5.5.1.) 5.10 Testing. 5.10.1 5.7.8 Acceptance Testing. 5.10.1.1 5.7.8.1 Fixed Foam Fire-Extinguishing Systems. The fixed foam discharge outlet system shall be tested with foam to determine the coverage of the rooftop landing pad. 5.10.1.1.1 5.7.8.1.1 The system shall cover 95 percent of the rooftop landing pad during the test. 5.10.1.1.2 5.7.8.1.2 The access points for firefighting and for egress shall be covered. 5.10.1.2 5.7.8.2 Manual Fire-Fighting Equipment. The hose hand-lines shall be flow tested to demonstrate that the design objectives are met. 5.10.2 5.7.9 Inspection, Testing, and Maintenance. 5.7.9.1 All water-based fire Fire protection systems installed in accordance with NFPA 14 or NFPA 16 shall be inspected, tested, and maintained in accordance with NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems. 5.7.9.2 Foam systems installed in accordance with NFPA 11 shall be maintained in accordance with NFPA 11.

SUBSTANTIATION for 5.7.9: Foam systems installed in accordance with NFPA 11 are not covered by NFPA 25.


10.1 Emergency Response Plan.

An approved emergency response plan shall be developed for each heliport.




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CommitteeStatement:

The emergency response plan for a heliport should be reviewed and approved by theAHJ.

Response Message:

Public Input No. 7-NFPA 418-2013 [Section No. 10.1]


20 of 25 6/16/2014 12:29 PM

First Revision No. 8-NFPA 418-2014 [ Section No. A.4.2 ]

A.4.2

FAA AC 150/5390-2B 2C , Heliport Design Advisory Circular, contains design and construction informationon heliports. This advisory circular provides for adequate clearance between operating aircraft andbuildings or structures located at the heliport. The FAA advisory circular should be consulted to ensurethat adequate safe practice and facilities are maintained.




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21 of 25 6/16/2014 12:29 PM

First Revision No. 11-NFPA 418-2014 [ Section No. C.2.1 ]

C.2.1

The calculation method is supported by research and experimental work done mainly at the United StatesFederal Aviation Administration (FAA) Technical Center. It was developed by the Rescue and FirefightingPanel II (RFFP II), a group of international experts in the field, convened by the International Civil AviationOrganization, in Montreal, Canada, circa 1970 in 1972 .




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Committee Statement: Corrected date of RFFP II.

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22 of 25 6/16/2014 12:29 PM

First Revision No. 9-NFPA 418-2014 [ Section No. D.1.2.1 ]

D.1.2.1 FAA Publications.

Federal Aviation Administration, Department of Transportation, Distribution Unit, M-494.3, Washington,DC 20590.

FAA AC 150/5390-2B 2C , Heliport Design Advisory Circular, January 20 , 1994 April 24, 2012 .




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23 of 25 6/16/2014 12:29 PM

First Revision No. 10-NFPA 418-2014 [ Section No. D.1.2.2 ]

D.1.2.2 ICAO Publications.

International Civil Aviation Organization, Montreal, Canada.

“ Rescue and Firefighting Panel, II ( Report of the Second Meeting," Document 9036 RFFP II, Montreal,June 5–16, 1972. ), Research and experimental work, circa 1970 .




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24 of 25 6/16/2014 12:29 PM

First Revision No. 27-NFPA 418-2014 [ Section No. D.3 ]

D.3 References for Extracts in Informational Sections. (Reserved)

NFPA 101 ® , Life Safety Code ® , 2015 edition.




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Committee Statement: New extracts added.

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25 of 25 6/16/2014 12:29 PM

Documents

First Revision No. 28-NFPA 418-2014 [ Global Input ] · 2015-12-23 · First Revision No. 24-NFPA 418-2014 [ New Section after 1.3.2 ] 1.4 Retroactivity. The provisions of this standard